I think it's really interesting that the trailer seems to confirm one of the more wild leaks - that the joycons will have optical sensors that allow them to be used as a computer mouse. It would be really interesting if Metroid Prime 4 shipped with mouse support. Also, this would be pretty notable if the rumors of the Master Chief collection releasing on Switch 2 are confirmed.
I guess I'm not a real fan. I couldn't justify re-purchasing a console that spends 80% of it's life docked to a nice 4k OLED. If they release an OLED switch 2 within the first year I'll hold off and get that, but I'm not going to purchase 2 switches just because they can't get their shit together.